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Finding the Fourth Proportional to 28,084,665.60, 42,126,998.40 and 28,084,665.60

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Solution

The fourth proportional to 28,084,665.60, 42,126,998.40 and 28,084,665.60 is: 42,126,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084,665.60 : 42,126,998.40 = 28,084,665.60 : x
  2. Step 2: Convert to fraction form
    28,084,665.60/42,126,998.40 = 28,084,665.60/x
  3. Step 3: Cross multiply
    28,084,665.60x = 42,126,998.40 × 28,084,665.60
  4. Step 4: Simplify right side
    28,084,665.60x = 1,183,122,662,795,735
  5. Step 5: Solve for x
    x = 1,183,122,662,795,735/28,084,665.60
  6. Step 6: Final answer
    x = 42,126,998.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.